Interleukin‐7 (IL‐7) plays an important role in affecting T‐cell proliferation, development and homeostasis.19, 20, 21, 22 Previous studies have reported that administration of IL‐7 combined with oxaliplatin significantly suppressed the growth of tumours in lung and abdomen metastasis models of colon cancer.23 For NSCLC, whether the IL‐7 combining cisplatin has a better anti‐tumour activity and reverses drug resistance, however, is still unclear. This evidence concerns the gene IL7 and non-small cell lung carcinoma.